Improvement in saw-sets



sYLvANUs BARTLETT, or wnsrronr, NEW HAMPSHIRE.

IMPRovEMENT IN SAW-SETS.

Specification forming part of Letters Patent No. 151,266, dated May 26, 1874; application filed March 14, 1974.

To all whom yit may concern:

Be it known that I, SYLVANUs BARTLETT, of VeStpOrt, in the county of Cheshire and State of N ew Hampshire, have invented a new and Improved Saw-Set, of which the following is a specification:

In the accompanying drawing, Figure 1 represents a side elevation, partly in section, of my improved saw-set; Fig. 2, a top view of the same. l

Similar letters of spondin g parts.

The invention will first be fully described and then pointed out in the claim.

In the drawing, A represents a saw-set of the usual sha-pe and material, whose anvil part B is provided with a tapering bottom extension, B1, for being iirmly set into a vise, and also with a forward-exteinlin g guide-bar, B2. rlhe pivoted hammer C has a heavy wedgeshaped head with the same base inclination as reference indicate correanvil B, and is acted upon by a strong spring,l

C. A U-shaped gage-piece, D, is applied around the rear and sides ot' the anvil B, as in Fig. 2, adjusted by a screw-bolt, a, and setnut Z), and tixed firmly in position by a setscrew, d, so that the sidewise-projecting front ends of the gage D move forward or backward along the fore end of anvil and hammer till the gage is set to the exact length of the teeth ofthe saw required to beset. A second slotted gage-piece, E, with lateral tapering head, slides on guide-bar B2 ot' anvil B, and is rigidly affixed thereon by a set'screw, E. rIhe slot otl the gage E is ot' greater length than guide-bar B2, so as to admit the inclined position of the gage in forward or rearward direction, and produce such an inclination of the same that the required set of the teeth may be obtained. rIhe uniform set of the teeth is exactly defined by passing the saw along gage D resting on gage E, so that thereby a very simple and easily-workin g saw-set for various practical applications is furnished.

Havin thus described my invention, I claim as new and desire to secure by Letters Pat entrEheV combination, with gage D, of the long screw a, nut b, and set-screw d, as and for the purpose set forth.

SYLVANUS BARTLETT.

Witnesses:

I-IANERY GARLETON, STEPHEN FAULKNER. 

